I decided to add a bit of weight to my racket today. Since I had no lead on hand, I decided to go with the cheap man version- duct tape. I used about 1 2/3 feet worth of the fairly thick stuff- about 2 inches wide. I cut the tape into 1/2 inch wide segments that were about 3 inches long. I then stuck it on my racket in rings. I have a ring of about 2.5 grams at 12, 4 grams each grams at 2 and 10, about about 2 grams each at 3 and 9. That give me, about 15 grams of weight added. Playing in my clinic today, I noticed a HUGE increase in stability and quite a bit in power. This racket is the rather infamous Gamma Ipex 7.0 MP, a fairly unstable frame. This racket was SOLID after my modifications. Mind you, not rock solid like a k95, but very solid. Maneuverability was actually not that decreased. I could still swing as fast as I normally could. Volleys were just as easy to get to, and a lot more solid besides. However, the part that confused me the most were my groundstrokes. I was able to swing slower (by 30% ish), yet I got much more depth, and the same amount of power as I usually do. I also got a lot more directional control, and the ball was zooming in on those lines. Considering that people on these boards are adding insane amounts of weight (record was, what close to 2 or 3 ounces of lead?), why am I able to get the same results that others have reported with far less weight added?